SP-STM study of the multi-Q phases in GdRu2Si2

التفاصيل البيبلوغرافية
العنوان: SP-STM study of the multi-Q phases in GdRu2Si2
المؤلفون: Spethmann, Jonas, Khanh, Nguyen Duy, Yoshimochi, Haruto, Takagi, Rina, Hayami, Satoru, Motome, Yukitoshi, Wiesendanger, Roland, Seki, Shinichiro, von Bergmann, Kirsten
المصدر: Phys. Rev. Materials 8, 064404 (2024)
سنة النشر: 2024
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics
الوصف: The two stable surfaces of GdRu2Si2 are studied using spin-polarized scanning tunneling microscopy (SP-STM). Depending on the applied magnetic field different magnetic phases have been found and the presented measurements are in agreement with the respective previously proposed multi-Q spin textures. In particular the multi-Q nature of the zero magnetic field state, for which previous experiments could not rule out the coexistence of single-Q states, can be confirmed by our spin-resolved measurements on the Si-terminated surface. The surfaces of GdRu2Si2 exhibit strong magnetism-induced modulations of the spin-averaged density of states. We find that while the magnetic contribution to the tunnel signal can be clearly identified for the Si-terminated surface this proves to be much more difficult for the Gd-terminated surface. However, the magnetic field dependent spatial modulations on the Gd-terminated surface demonstrate that additional magnetic phase transitions occur for the surface layer compared to those identified for bulk GdRu2Si2 and possible spin textures are presented.
Comment: 7 pages, 5 figures
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevMaterials.8.064404
الوصول الحر: http://arxiv.org/abs/2405.18026Test
رقم الانضمام: edsarx.2405.18026
قاعدة البيانات: arXiv